WhoIsHostingThis.com is a website that provides users with information on web hosting providers. The website allows users to input a domain name and instantly find out which hosting company is responsible for the website. It also offers detailed reviews of web hosting providers to help users make informed decisions when selecting a hosting provider. Additionally, the website has a blog section that covers various topics related to web hosting, website building, and online marketing. Overall, WhoIsHostingThis.com is a valuable resource for anyone looking to find the best hosting provider for their website or business.